CN111764488A - Be applied to drop energy dissipation structure of super dark inspection shaft - Google Patents
Be applied to drop energy dissipation structure of super dark inspection shaft Download PDFInfo
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- CN111764488A CN111764488A CN202010765857.8A CN202010765857A CN111764488A CN 111764488 A CN111764488 A CN 111764488A CN 202010765857 A CN202010765857 A CN 202010765857A CN 111764488 A CN111764488 A CN 111764488A
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- 238000007689 inspection Methods 0.000 title claims abstract description 44
- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 37
- 238000005192 partition Methods 0.000 claims abstract description 14
- 238000012423 maintenance Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 239000010865 sewage Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 14
- 238000010276 construction Methods 0.000 abstract description 8
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 239000010426 asphalt Substances 0.000 description 11
- 238000012360 testing method Methods 0.000 description 6
- 230000009193 crawling Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 241000375392 Tana Species 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
- E03F5/025—Manhole shafts or other inspection chambers; Snow-filling openings; accessories provided with a liner
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sewage (AREA)
Abstract
The invention discloses a drop energy dissipation structure applied to an ultra-deep inspection well, and relates to the technical field of construction engineering construction. According to the structure, a scoring partition plate is arranged in a drop well, a drainage channel and an overhaul channel are separately arranged, a baffle is additionally arranged to achieve a better energy dissipation effect, and a flow groove is formed in the bottom of the drop well to provide initial power for sewage entering a pipeline; compare traditional structure construction convenience, simple structure, operation safe and reliable, later stage operation maintenance is convenient, and this structure bottom and top reserve the hole and provide the air convection passageway, are favorable to the drainage, and are favorable to the circulation of air in the well.
Description
Technical Field
The invention discloses a drop energy dissipation structure applied to an ultra-deep inspection well, and relates to the technical field of construction engineering construction.
Background
At present, the mode to drop well designs for conventional drop plate energy dissipation more, and this kind of mode drop energy dissipation effect is better, the construction is simple, but is unfavorable for well gas circulation to flow, and does not design the access way specially to the ultra-deep inspection shaft, and later stage maintenance is maintained the difficulty, overhauls to the later stage and easily causes the potential safety hazard.
Meanwhile, for the related patents of drop wells, the invention patent with the application number of CN107858942A discloses an urban rainwater storage and discharge system, which can store rainwater, increase the effective utilization of rainwater resources in cities, and also can make the rainwater slowly permeate underground to further utilize redundant rainwater; different from the application in different technical fields, the invention has better treatment on drop energy dissipation, reasonably controls the gas flow in the well and is more beneficial to drainage.
Disclosure of Invention
In order to solve the problems, the invention discloses a drop energy dissipation structure applied to an ultra-deep inspection well, wherein a partition plate is arranged in the drop well, a drainage channel and an overhaul channel are separately arranged, and the circular flow of gas in the well is improved on the basis of increasing drop energy dissipation; the maintenance channel is separately arranged for the ultra-deep inspection well, the later maintenance is convenient, and the personal safety is effectively guaranteed.
The technical scheme adopted by the invention is as follows:
the invention discloses a drop energy dissipation structure applied to ultra-deep inspection,
the inspection well comprises a drainage channel and an overhaul channel, the drainage channel and the overhaul channel are separately arranged through a partition plate, a drop plate is arranged in the drainage channel, and a chute is arranged below the drop plate at the bottommost part of the drainage channel;
the flow groove is arc-shaped, and pulls sewage to flow to the water outlet pipeline to provide initial power for the sewage to enter the pipeline, so that the probability of sediment sedimentation is reduced, and the risk of sludge blockage is reduced;
the water dropping plates are arranged in a staggered mode from top to bottom and on the inner sides of the left wall body and the right wall body, and the vertical distance between every two adjacent water dropping plates is 2-3 m; the energy dissipation effect is realized by arranging the left side and the right side at a vertical reasonable interval; meanwhile, baffles are additionally arranged on the outer sides of the drop plates, the outer sides of the drop plates are connected with the baffles through steel bars L1, the inner sides of the drop plates are connected with a wall through steel bars L2, and the baffles are additionally arranged on the outer sides of the drop plates to increase the energy dissipation effect; 150-300mm thick pebble materials are paved on the surface of the water drop plate to form a 150-300mm thick energy dissipation layer, and the first layer of the water drop plate at the top is not provided with a baffle.
The top of the drainage channel is provided with a water inlet, and the bottom of the drainage channel is provided with a water outlet connected with a flow groove;
holes are reserved at the top and the bottom of the partition wall between the drainage channel and the overhaul channel, the top hole is an inspection inlet, the bottom hole is an overhaul inlet hole, and the two holes are used as air holes at the same time; the two holes have the main functions of allowing maintainers to pass up and down, and providing a channel for gas flow to facilitate drainage;
a steel ladder stand is arranged in the overhaul channel from top to bottom close to a wall, a steel ladder stand protection cage is arranged around the steel ladder stand to protect overhaul personnel from going up and down, and rest platforms are vertically arranged in the overhaul channel every 5-8 meters for the overhaul personnel to have a rest halfway;
because the inspection well is deep and the sludge is inconvenient to clear, a mud sinking well is not arranged at the bottom of the ultra-deep inspection well, and the solution mainly has two points, namely, the last inspection well on a pipeline connected with the inspection well is arranged as the mud sinking well to prevent large silt from entering the drop well, and a launder is designed at the bottom of the inspection well to prevent the silt from settling.
The invention has the following technical effects:
compared with the traditional structure, the structure separately arranges the drainage channel and the maintenance channel, and has convenient construction, simple structure, safe and reliable operation and convenient later operation and maintenance; the chute is additionally arranged to provide initial power for sewage in the pipeline, sediment deposition can be effectively reduced, and the ventilation holes are additionally arranged to adjust the pressure in the well, so that a channel is provided for gas flow, and drainage is facilitated.
The specific contents are as follows:
1. the structure provides an air convection channel, which is beneficial to drainage and ventilation in the well;
2. the structure is provided with a special maintenance channel, so that later maintenance is convenient, and the personal safety is effectively ensured;
3. the structure is simple, the construction is convenient, and the structure is safe;
4. the structure is additionally provided with the water baffle, so that the energy dissipation effect is better than that of a conventional drop plate;
5. the structure is almost free from maintenance at the later stage, and the cost is low;
6. the structure is arranged under the ground, so that the effect of surrounding landscapes is not influenced;
7. the bottom of the structure is provided with a special collecting chute, so that initial power is provided for sewage entering a pipeline, and silt is effectively reduced to deposit in a well;
8. this structure is reinforced concrete structure, and the water-proof effects of structure itself is good, has reduced the risk of sewage seepage.
Drawings
FIG. 1 is a plan view of an ultra-deep manhole;
4-a water dropping plate, 17-a preformed hole of the steel ladder with a protective cage;
FIG. 2 is a cross-sectional view of an ultra-deep manhole 1;
1-a drainage channel, 2-an inspection channel, 3-a partition plate, 4-a water drop plate, 5-a launder, 9-a water inlet, 10-a water outlet,
11-an inspection access port, 13-an inspection access hole, 14-a steel ladder stand, 15-a steel ladder stand protection cage, 16-a rest platform,
17-reserving holes for steel crawling ladders with protective cages;
FIG. 3 is a cross-sectional view of an ultra-deep manhole 2;
1-drainage channel, 3-partition plate, 4-drop plate, 5-launder, 6-baffle, 7-reinforcing steel bar L1, 8-reinforcing steel bar L2,
9-a water inlet, 10-a water outlet, 11-a breather hole, 12-a water drop plate pebble energy dissipation layer, 13-an inspection inlet hole,
17-preformed holes of the steel ladder stand with the protective cage, and 18-an energy dissipation layer of the asphalt plate.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
In the embodiment, the adopted data is a preferred scheme, but is not used for limiting the invention;
in this embodiment, a C15 concrete cushion is preferably adopted at the bottom, and pebbles with the thickness of 1000mm are laid on the cushion;
example 1
As shown in fig. 1 to 3, the embodiment provides a drop energy dissipation structure applied to an ultra-deep inspection well, which includes a drainage channel and an inspection channel, wherein the drainage channel and the inspection channel are separately arranged through a partition plate, and the partition plate is arranged on a middle partition wall to divide the drainage channel and the inspection channel into two areas, so that workers can conveniently perform inspection work on the ultra-deep inspection well;
a drop plate is arranged in the drainage channel, a chute is arranged below the drop plate at the bottommost part of the drainage channel, and the chute is arranged into an arc shape to introduce sewage into the water outlet pipeline;
the water dropping plates are arranged in a staggered mode from top to bottom and on the inner sides of the left wall body and the right wall body, preferably, the vertical distance between every two water dropping plates is 2450mm, and the height difference of the selected distance is adopted to achieve the water dropping energy dissipation effect; the outer side of the drop plate is additionally provided with a baffle, the outer side of the drop plate is connected with the baffle through a steel bar L1, and the inner side of the drop plate is connected with a wall through a steel bar L2; preferably, for better stress and shear resistance, the steel bars L1 and L2 are 1000mm in length and are arranged in a mode of L1(1) and L2 (1);
preferably, the height difference between the first drop plate at the upper part and the sewage inlet pipe is less than 1000mm, and the first drop plate is not provided with a baffle plate because the height difference is smaller; preferably, a C20 concrete energy dissipation layer with the thickness of 200mm is paved on the surface of one water drop plate, and a pebble energy dissipation layer with the thickness of 200mm is paved on the lower water drop plate;
a water inlet is arranged on the top wall body of the drainage channel, and a water outlet is arranged on the bottom outer wall body;
an inspection inlet is arranged at the top of the partition wall between the drainage channel and the overhaul channel, and preferably, an inspection opening with the diameter of 700mm is adopted; arranging an access hole at the bottom of the partition wall, wherein the access hole is used as an air hole at the same time, and preferably, a reserved hole of 1000 × 1500mm is adopted; the air holes are arranged at the top and the bottom of the middle partition wall correspondingly, so that an air convection channel is provided, and drainage is facilitated;
the top of the drainage channel is additionally provided with air holes, the air holes enhance the flow of air and are more favorable for drainage, and preferably, a reserved hole of 1000 × 800mm is adopted;
a steel crawling ladder is arranged in the overhaul channel from top to bottom close to a wall, and a steel crawling ladder protection cage is arranged to surround the steel crawling ladder to protect overhaul personnel from passing; preferably, rest platforms are vertically arranged in the overhaul channel every 6000mm for the overhaul personnel to rest halfway;
in this embodiment, the inspection well is deep, so that the sludge is inconvenient to clean and transport, a mud sinking well is not arranged at the bottom of the ultra-deep inspection well, and the last inspection well on the pipeline connected to the inspection well is set as the mud sinking well, so that large silt is prevented from entering the drop well.
Example 2
As shown in fig. 3, the embodiment provides a drop energy dissipation structure applied to an ultra-deep inspection well, which includes a drop plate and a baffle plate connected to the drop plate, where the drop plate and the baffle plate cooperate to achieve the effects of energy dissipation and noise reduction;
in this embodiment, preferably, the height difference between the first drop plate at the upper part and the sewage inlet pipe is less than 1000mm, and the first drop plate is not provided with a baffle plate because the height difference is small; preferably, a C20 concrete energy dissipation layer with the thickness of 200mm is paved on the surface of one water drop plate, and a pebble energy dissipation layer with the thickness of 200mm is paved on the lower water drop plate;
according to impulse formula Ft＝△Ep，EpMv is obtained; so Ft＝△Ep＝mv-mv0＝m(v-v0) To yield F ═ { m (v-v)0)}/t；
Where m is the mass of the object, v is the terminal velocity, v is0Is the initial velocity, t is time;
in this embodiment, it is preferable to adopt a vertical distance 2450mm between the drop plates, where the distance ensures that the sewage generates sufficient falling time, and according to the impulse formula, the larger the time t is, the smaller the generated impulse F is, so that the impulse generated by the sewage on the drop plates is smaller, and the noise reduction and energy dissipation effects are realized;
in this embodiment, preferably, a 100mm thick asphalt plate is laid on the drop plate waterproof layer, and the asphalt plate has good waterproof, shock-absorbing and sound-insulating effects;
asphalt sheet leans on a curb plate undercut of wall, forms length and is 1500mm, highly is 100 mm's recess, the recess radian is 4, at first reaches asphalt sheet depressed part when sewage falls, and sewage and asphalt sheet produce bigger area of contact, reduce impact energy, while noise abatement.
Example 3
As shown in fig. 3, the embodiment provides a drop energy dissipation structure applied to an ultra-deep inspection well, which includes a flow groove additionally arranged at the bottom, wherein the flow groove is arc-shaped and guides sewage subjected to energy dissipation into a water outlet pipeline;
according to the parabolic formula x22py, deriving the slope k △ Y/△ X;
in the embodiment, the arc-shaped launder belongs to a form of parabola, and preferably, the height of the launder is 4000mm, and the width of the launder is 6800 mm; calculating to obtain k as 0.588 according to a formula k as delta Y/. DELTA.X, as 4000 as delta Y and as 6800, and calculating to obtain A as arctan0.588 as 180 degrees XK +30.46 degrees according to a formula tanA as 0.588;
preferably, the flow grooves are arranged at an oblique angle of 30 degrees, and the angle is a preferable scheme for the flow grooves and provides initial power for sewage to enter the pipeline;
preferably, the trough is paved with an asphalt plate with the thickness of 100mm, the asphalt plate has good noise reduction and waterproof effects, and the drainage energy impact and noise pollution are effectively reduced through the optimal oblique angle arrangement of the asphalt plate and the trough.
The following comparative experimental data were obtained with reference to the background art and examples 1, 2 and 3:
in the test, a common sound level meter is adopted to measure the sound pressure level of noise, the test measurement points are positioned in the inspection well bottom overhaul channel, the four groups of test measurement conditions are consistent, and the environment is kept the same;
the first group of tests adopt the traditional water drop plate structure in the background technology, and the sound pressure level is 100 db;
the second set of tests used the baffle structure added as described in example 1, and the sound pressure level was measured to be 80 db;
the third set of tests used the structural features of example 1 plus example 2, with asphalt slabs and asphalt slab grooves added, and the acoustic measurements were taken
The pressure grade is 70 db;
the fourth set of experiments employed the structural features of example 1, plus examples 2 and 3, by adjusting the bottom launder angle,
the better energy dissipation and noise reduction effects are achieved, and the measured sound pressure level is 60 db.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (7)
1. The utility model provides a be applied to drop energy dissipation structure of super dark inspection shaft which characterized in that, includes drainage channel (1) and access way (2), drainage channel and access way set up separately through division board (3), set up drop board (4) in the drainage channel, set up chute (5) under the drainage channel bottommost drop board.
2. The drop energy dissipation structure applied to the ultra-deep inspection well according to claim 1, wherein the drop plates are staggered from top to bottom and from the inner sides of the left wall body to the inner side of the right wall body, and the drop plates are vertically spaced by 2-3 meters.
3. The drop energy dissipation structure applied to the ultra-deep inspection well is characterized in that a baffle (6) is additionally arranged on the outer side of the drop plate (4), the outer side of the drop plate (4) is connected with the baffle through a steel bar L1(7), the inner side of the drop plate (4) is connected with a wall through a steel bar L2(8), energy dissipation pebbles with the thickness of 150 and 300mm are paved on the surface of the drop plate (4), and the baffle (6) is not arranged on the first drop plate at the top.
4. The drop energy dissipation structure applied to the ultra-deep inspection well is characterized in that a water inlet (9) is formed in the top wall of the drainage channel (1), a water outlet (10) is formed in the bottom outer wall of the drainage channel, and the flow groove (5) is arc-shaped and connected with the water outlet (10).
5. The drop energy dissipation structure applied to the ultra-deep inspection well is characterized in that an inspection inlet (11) is formed in the top of a partition wall between the drainage channel (1) and the maintenance channel (2), and an inspection inlet hole (13) is formed in the bottom of the partition wall.
6. The drop energy dissipation structure applied to the ultra-deep inspection well is characterized in that a steel ladder (14) is arranged inside the access way (2) close to a wall from top to bottom, a steel ladder protection cage (15) is arranged around the steel ladder, and rest platforms (16) are vertically arranged inside the access way (2) at intervals of 5-8 meters.
7. The drop energy dissipation structure applied to the ultra-deep inspection well is characterized in that the structure arranges the last inspection well connected into the structure into a mud well, so that silt is prevented from entering the structure, and the risk of silting in the well is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010765857.8A CN111764488A (en) | 2020-08-03 | 2020-08-03 | Be applied to drop energy dissipation structure of super dark inspection shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010765857.8A CN111764488A (en) | 2020-08-03 | 2020-08-03 | Be applied to drop energy dissipation structure of super dark inspection shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111764488A true CN111764488A (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010765857.8A Withdrawn CN111764488A (en) | 2020-08-03 | 2020-08-03 | Be applied to drop energy dissipation structure of super dark inspection shaft |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718167A (en) * | 2022-03-10 | 2022-07-08 | 济南市市政工程设计研究院（集团）有限责任公司 | Municipal drainage system |
-
2020
- 2020-08-03 CN CN202010765857.8A patent/CN111764488A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718167A (en) * | 2022-03-10 | 2022-07-08 | 济南市市政工程设计研究院（集团）有限责任公司 | Municipal drainage system |
| CN114718167B (en) * | 2022-03-10 | 2023-09-26 | 济南市市政工程设计研究院（集团）有限责任公司 | Municipal drainage system |
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Application publication date: 20201013 |